CMS4A16LAx–75Ex
T0
T2
T3
T1
T4
T5
T6
T7
CLK
Write-AP
Bank n
Read-AP
Bank m
Command
NOP
NOP
NOP
NOP
NOP
NOP
Internal States
tRP - Bank m
tWR- Bank n
Page
Active
Write with a Burst of 4
Interrupt Burst, Write-Bank Precharge
tRP - Bank n
Bank n
Bank m
Page Active
Read with Burst of 4
Precharge
Bank n
Col a
Bank m
Col d
Address
DQ
Din
a
Din
a+1
Dout
d
Dout
d+1
CAS Latency=3(Bank m)
Figure 27. Write with Auto Precharge Interrupted by a Read(CAS Latency =3)
T0
T2
T3
T1
T4
T5
T6
T7
CLK
Write-AP
Bank m
Write-AP
Bank n
Command
NOP
NOP
NOP
NOP
NOP
NOP
Internal States
tWR -Bank n
tRP -Bank n
Page
Active
Write with a Burst of 4
Interrupt Burst, Write-Bank Precharge
Bank n
Bank m
tWR - Bank m
Write-Bank
Page Active
Write with Burst of 4
Bank n
Col a
Bank m
Col d
Address
DQ
Din
a
Din
a+1
Din
a+2
Din
d
Din
d+1
Din
d+2
Din
d+2
Figure 28. Write with Auto Precharge Interrupted by a Write
41
Rev. 0.5, May. ‘07